Shingle-sawing machine



(No Model.) 8 Sheets-Sheet 1.

W. J PERKINS.

S HINGLB SAWING MAGHINE. No. 380,346. Patented Apr. 3, 1888.

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(N0 Model.) 8 Sheets-Sheet 2.

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SHINGLE SAWING MACHINE. No. 380,346. Patented Apr. 3, 1888.

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SHINGLE SAWING MACHINE.

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SHINGLE SAWING MAGHINE.

Patented Apr. 3, 1888..

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(No Model.)

(No Model.) 8 Sheets-Sheet 8.

W. J. PERKINS.

I SHINGLE SAWINGMAGHINE. No. 380,346. Patented Apr; 8, 1888.

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XVlLLlS J. PERKINS, OF GRAND RAPIDS, MICHIGAN.

SHINGLE-SAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 380,346, dated April 3,1888.

(No model. i

To ctZZ whom it may concern:

Be it known that I, WILLIs J. PnnKINs, residing at Grand Rapids, in thecounty of Kent and State of Michigan, have invented certain new anduseful Improvements in Shingle-Sawing Machines,ol' which the followingis aspecification, reference being had therein to the accompanyingdrawings.

This invention relates to shingle sawing machines of the character whichhave a rotary carriage carrying a plurality of shingle bolts or blocksto the saws which cut the shingles from said blocks.

The object of the invention is to improve the working parts of a machineof the character described; and the invention consists in improvementsin the carriage controlling and operating devices; also, in certainimprovements in the mechanism for bringing the blocks to positionpreparatory to sawing; also, in improved constructions and combinationsfor delivering the spalt and the sawdust from the machine; also, in manyother details of con struction and combinations of parts, hereinafterdescribed.

Figure 1 is a perspective view of my rotary machine, illustratinggenerally the various parts of the machine in their relation to eachother. Fig. 2 is a side elevation of the machine, some parts beingomitted for clearness of illustration. Fig. 3 is another side view ofthe machine aboutata right angle to the view Fig. 2, parts being brokenaway for clearness of illustration. Fig. 4 is atop plan view'of themachine, parts being broken away and parts being omitted for clcarncssof illustration. Fig. 5 is a plan view with the rotating table orcarrier removed and with both saws and their operating mechanismomitted. Fig. 6is an elevation of one of the tilt-tables and part of itsoperating mechanism attached to a broken section of the frame. Fig. 7 isan elevation of the same tilt-table, taken about at a right angle fromFig. 6, the tilting mechanism tails of the same. Fig. 10 is aperspective view of one of the saw-shields. Fig. 12 is a perspective ofthe extensible lever for lifting the carriage-wheel and shaft. Fig. 18is a vertical section of one of the saw-arbors and its lower bearing,the upper bearing and part of the arbor being in elevation. Fig. 14: isa plan of the lower bearing-box of the saw-arbor and attachments to saidbox. Fig. 15 is a detail elevation of part of the tilt table mechanism,(being in the opposite direction from Fig. 6 and at the other side ofstandard D.) Fig. 16 is a detail section of the tilt table.

The shingle-sawing machine is of that general class which has a rotatingtable hung toa central vertical axis, the table having a number ofreceptacles for shingle blocks or bolts, and mechanism for holding thebolts in each receptacle. Beneath the outer edges of the table arehorizontal saws supported on verticalarbors,which saws successively cutshingles from the lower surfaces of the same blocks. There are alsomechanisms for adjusting the blocks to such position that each blockshall present just enough of its substance below the plane of the saw toproduce a perfect shingle.

In thepresent machine there are ten recep tacles for shingle-bolts inthe revolving table, two saws on vertical arbors, and a tilt-table foreach saw. Consequently with ten blocks in the table twenty shingles willbe sawed with each revolution of the bolt-carrying table; but the numberof saws and bolt-receptacles may be increased.

It will be understood that in the present machine all matters relatingto the saws, the tilttablcs, and the shinglesupporting ways areduplicated at each side of the machine, excepting (as it is intendedthat one man shall supervise the whole machine) that devices forthrowing one of the tilt-tables out of normal position must cross themachine while the other is at the hand of the operator, and the same istrue of the spalt-droppers.

The various parts will generally be described in the singular number inthis specification, as with this explanation there will be littledifi'iculty in locating such parts as are duplicated.

The numeral 1 indicates the central shaft of the machine, which runs inbearings 2 and 3 in the main frame A of the machine. The ro- IOO tarycarriage 5 is supported by a spider, 6, at; tached to the upper portionof the central shaft, 1. The rotary carriage 5 has receptacles 7forshingle-bolts,each receptacle or frame having a dog, 8, which isforced by a spring, 9, against the shingle-bolt. The spring 9 bearsagainst a shoulder, 10, (see Fig. 4,) on the rotary carriage, and alsoagainst a set-nut, 11, on the draw-rod 12, which is pivotally connectedwith the dog 8 at the end of bent arm 13. The inner end of rod 12 bearsan antifriction roll, 14, which rides against a cam, 15, on the mainframe at such point in the revolution of the rotary carriage as itisdesired to loosen the dog from the shinglebolt. By having the track inthe center and operating the dog therefrom I have a short run of theroller on the end of the dogging-rod against the track, and the camwhich operates the dogging-rod is out of the way of the man who operatesthe machineimportant advantages in machines of this class.

It will be understood that the shingle-bolt .will be undogged andpermitted to drop as much as the thickness of a shingle when approachingeach saw. Consequently in the present machine there will be two cams,15, while the dogs and connections willequal in number the receptaclesfor shingle-bolts-that is, ten in this machine. For the guidance andsupport of the inner ends of the rods 12, there is a link, 16, pivotedto the rotary carriage 5 and to the inner ends of said rods 12. Thecamsurfaces of cams 15 are so formed as to undog the bolts at the timethey are on the adjustable ways, hereinafter described. The movement ofthe dogs is toward the center of the machine, and the pressure of thesprings and cams is in radial direction.

Each bolt receptacle 7 has two bearingpieces or pushing-blocks, 17,which are preferably of wood and vertically adjustable between ribs atthe rear of the box or receptacle 7. These ribs, in connection withblocks 17, force the shingle-bolts toward the saws during the rotationof the table. The dogs 8 are guided in ways 18, so that they will remainparallel with the inner holding-dogs, 19, of receptacles 7 and at aright angle to the front faces of the bearing-pieces 17 in thereceptacles 7.

Beneath the rotary table 5, at each side of the machine, are tracks 20,having an even upper surface, and when the shingle-bolt is undogged itfalls upon and is supported by these tracks or ways 20, being forcedalong the ways in the direction of rotation of the carriage by thepressure of block 17 Asection of this way is movable, for the purpose ofdropping a spalt or refuse block, as will be hereinafter explained. Atthe ends of the ways 20 toward the saws are tilt-tables 21. The purposeof these tilt-tables is to drop one end of the shingle-bolt more thanthe other, so that the shingle sawed from the block shall bewedge-shaped.

The central shaft, 1, which supports the rotary carriage, serves also asa means for lifting the same by means of the lever a, pivoted to thestandards I) on the central bar, B, of the frame which supports thebearing-box 2. The lover a is in sections, the outer section, 0, slidingon the section a and being attached thereto by loops d 6, thus formingan extensible or telescopic lever. (See Fig. 12.) The outer 7 end of thelever is normally held up by a swinging piece, f, pivoted to the upperpart of the frame at 'i and having hooks or offsets g and h at its lowerend. The lever rests on offset 9 when out of operative position; butwhen pressed down it may be held down by swinging the projection it overit. The inner end of the lever on turns up under collar 1, securedfirmly on the central shaft, 1, and when the outer end of the lever ispressed down this I shaft, its spider 6, and the carriage 5 will belifted far enough to permit the adjustment or removal of the saws fromtheir arbors. The

carriage 5 has an external gear, 30, and is driven by a pinion, 31,engaging therewith. 9c

.(See Fig. 4.) The pinion 31 is on upright shaft 32, supported inbearings 33 34 on the main frame. A belt-pulley, 35, on shaft 32 has abelt, w, passing round pulley 36 on shaft 37, which shaft is supportedin bearings and has a pulley, 38, connected by belt y with pulley 39 onone of the saw-arbors, the belt y straddling the central shaft, 1, ofthe machine. The belt a; is controlled by idler-pulley 40, mounted onone end of three-armed lever 41, which is pivoted at 42 to. the frame ofthe machine, and has an arm, 43, bearing a brakeshoe, which can be swunginto contact with the rim of pulley 35 at the same time idler 40 isswung away from belt 00. The third arm, 44, [(5 of the threearmed leverhas a draw-rod, 45, attached, which rod is pivotally connected at 46 tothe hand-lever 47. The lever 47 has its fulcrum near the bottom of theframe and may be swung into a notch, 48, in an arm of the frame. Whenlever 47 rests in the notch 48,. the idler 40 is swung away from belt 00and the brake-shoe is thrown into contact with the pulley 35, thusstopping the motion of that pulley, and hence that of the carriage 5,while 1 15 the movement of saws is not affected. The tilt-tables 21 aremade to perform the usual office of such tables, which is to permit theshingle-bolts to drop below the plane of the saw at one end enough tosever the thickness of a shingle-butt and at the other end the thicknessof a shingle-point.

In rotary machines having two saws it is customary to have onetilt-table set to make butts on the outward end of the shingle-bolt 12while the opposite table in normal position makes the butt off of theinner end of bolt, thereby cutting the thick end of the shinglealternately from opposite ends of the bolt and avoiding the necessity oftilting the tables ex- 1 0 cept for the following reasons: A bolt whenplaced in the machine may be wedge-shaped, andif sawed alternatelybuttsand points there would be a large spalt left that would be still throughthe sleeves 72 and having their upper a wedge; but if several shingleswere taken off in succession one way it would square the bolt up or makeits opposite faces parallel, and several more shingles be cut from it.Again, a knot in a shingle-butt would classify the shingle into a lowerand cheaper grade, while the same knotin the point would not be ofmaterial detriment to it.

I arrange my tilt-tables to move when desired, so as to lower either endof the bolt carried in any one of the receptacles 7 abnormally, but toreturn to normal position in time to receive the nextsucceeding bolt.

The table 21 has a post, 50, attached to its lower surface. (See Figs.6, 7, and 8.) The post is forked at 51, and the arm 52 is also securedto the table by a screw or in other suitable manner. The post 50 has acylindrical section, 53, which receives a collar, 54, having a sphericalouter surface. The cylindrical section 53 is free to slide in thiscollar 54. The collar 54: has its outer bearing in a box,55, (on theframe,) havingasemispherical seat, the cap 56 of said box having asimilar seat. The box and its cap thus hold the post 50 in such mannerthat itmay havea universal rocking motion in the bearing and may beraised or lowered with respect to the bearing.

The table 21 has flanges 60 at its sides, each l flange having aninclined lower surface. The inclines correspond with the inclined facesof wedges 62, these wedges being connected by bar 63, having aprojection, 64. A setscrew, 65, hearing in arm 66 of table 21, engages ascrew-thread in projection 64, so that the turning of the set screw willmove the wedges 62 transversely with reference to the table 21. Thelower faces of wedges 62 are grooved and supported on cups 70, whichhave splines 71 across their faces and are held up, as will behereinafter described. The splines 71 fit in the grooves in the lowerfaces of the wedges. Asthe cups are fixed against sidewise movement, itwill appear that the to rui ng of the set-screw 65 will movethe wedges(52 lengthwise, and thus raise or lower the table 21 with reference tothe cops 70. The cups 7C are hollow and receive in their cavities theupper ends of the hollow screw-sleeves 72. These sleeves 72 arescrew-threaded and may be screwed up or down in the platform 0 of themain frame and locked byjam-nuts 7 20. The risers 7 4; are preferablyrods passing ends seated in the hollows of cups 7O inside the sleeves72. The rods or risers 74. are screw-threaded at their lower ends andpass through pivotal nuts 75, which are journaled in the lever orwalking-beam 76. Set-nuts 77 serve to secure the risers in any desiredrelation tothc pivotal nuts '75. The walking-beam 76 is pivoted tostandard D of the main frame;

From the above-described construction it 5 will be apparent that thesleeves 72 may be i set at such a height as to limit the downward lmovement of cups 70. They are set at such l height as to permit the cups70, when not otherwise supported, to fall far enough to drop thetilt-table the thickness of a shingle-butt of such gage as may bedesired. One of the risers 74, however, will at the same time be liftedby the rocking of beam 76 to such a height that it will support the cup70, and con sequently its end of table 21, to such a height that theshingle-bolt at that end will be only far enough below the plane of thesaw to make a shingle-point. Thus the sleeves 72 serve to support theends of the tilttable from which the shingle-butts are out, while therisers 74' serve as point-supports for the table. The rocking movementof the walking-beam being a predetermined quantity equal to the makingof the most tapering shingle desired, the butt and point supports can beso regulated as to produce any taper of shingle desired, a little lostmotion beingpermitted,when desirable, between the upper ends of therisers 74 and cups 70, so that neither adjustment can interfere with theother. One end, 79, of the vibrating lever or walking-beam 76 rests in acam-race, 80, in the edge of a disk, 81. This disk is mounted loosely onrockshaft 82. The action of the cam-race is to raise or depress the end79 of the lever 76 whenever the disk 81 is made to rotate a partialrevolution. he mechanism by which interinitting rotation of disk 81 maybe caused is as follows, (see Figs. 1, 9, 10, 11, 15:) The upper face ofdisk 81 has locking-notches 83 and ratchet-teeth 84 surrounding itsperiphery, the notches and teeth being equal in number and opposite theelevations and depressions in the cam-race. A gravity pawl or catch, 85,having a projection, 850, sliding in a guideway, 86, formed in an arm,E, of the frame, falls into one of the notches 83 whenever free to doso. The catch 85 is held up by a cam or curved incline, 87, in theinterior of a sector-shaped chamber of wheel 88. Rockenwheel S8 isfirmly secured to rock-shaft 82 and carries a gravity-pawl, 89. Thewheel 88 isjust above disk 81, so thatthe pawl 89 will engage theratchet-teeth 84: when the rocker-wheel vibrates far enough, but willride over said teeth in the other direction. Cap 90 covers thesector-chamber in rockerwheel 88 and has a projection, 91, to which aspring, 92, is attached, the other end of said spring being connected tothe frame of the ma chine. V

The rocker-wheel 88 has a side projection or tooth, 95, and a dependingtooth, 94. weighted lever, 100, pivoted to the standard D of the frame,has astop, 101,which is in position to engage the teeth on therockerwheel when that end of lever is raised,and to engage the tooth 94:when the end of the lever 100 is depressed, and an arm, 102, whichpasses into the race-cam groove St). The pull of spring 92 draws thetooth 95 against the stop 101, which is so located with reference to thetwo pawls carried by rocker-wheel 88 that both pawls are practicallyinoperative while the lever 100 is in the position shown in Fig.

1; but when the weighted end of the lever 100 is lifted the spring rocksthe rocker-wheel (and rock-shaft) a little farther until tooth 94 comesagainst stop 101. This permits pawl 89 to engage a tooth 84, and thenwhen the shaft 82 is rocked, in manner hereinafter explained, therocker-wheel 88 will move camdisk 81 with it, and the end of lever 76will be raised or lowered. As the rocker-wheel 88 moves to the extremeof its movement in the direction of the arrow, Fig. 11, the incline 87permits the catch 85 to fall, and so look the cam-disk to arm 86 of theframe, thus securing a solid fastening of the cam-disk for the instantand arresting the momentum. As soon as the rocker-wheel swings in theopposite direction, theincline raises this catch 85, freeing thecam-disk. The weighted lever is connected by rod 103 to handle 104,pivoted to the frame, said rod 103 passing through loop 105 on saidlever andhaving a button 106just below the loop. The lower end of rod103 reaches down toa rock-shaft, 107, mounted in bearings and havingslotted arm 108, through which the rod 103 passes loosely. Said rod 103has a nut or button, z, above the arm 108. The arm is actuated by thedepression of rod 103 to rock-shaft 107 against the force of atorsion-spring, 109. The handle 104 can be depressed by the hand of theoperator, thus lifting the weighted end of the lever 100 and droppingthe other end, so that'the rocker wheel 88 can swing far enough to throwits pawl into engagement with the cam-wheel. Rock-shaft 82 has at itsupper end a crank, 11,0, bearing an anti-friction roll, 111. This rollis engaged by an incline, 22, on the carriagewheel 5 and partiallyrotates shaft 82 as the bolt carriage or receptacle 7 passes the roll.

The operation of this part of the device is as follows: When handle 104is depressed,its rod 103 liftsthe weighted end of lever 100, allowingrocker-wheel tooth 95 to swing over the stop 101 and tooth 94 to engagesaid stop. The rocker-wheel and cam-disk are then locked together bypawl 89, and when the next cam, 22, on the carriage 5 swings the arm 110of the rock-shaft 82 the race-cam 81 will be actuated and the tilt-tabletilted. The cam-race during this movement holds down the toe 102 oflever 100, so that as soon as the rock-shaftis relieved spring 92 willmove the rocker-wheel 88 again to the position to engage pawl 89 with atooth 84 of cam-disk 81, and the next cam on carriage 5, engaging crank110 on rock-shaft 82, moves the cam-disk another notch, at the same timerelieving the lever 100 from engagement with the race-cam, when theweight will resume control of the lever 100 and the rocker-wheel will belocked in the position where it is left by cam 22 until lever 100 isagain tripped. Thus the tripping of said lever 100 causes therocker-wheel and its connected mechanism to tilt the tilt-table oncewith the first approaching cam on the carriage 5 and to restoreit tonormal position with the second one, when the tilttable will remainstationary until lever 100 is the tilt-table at one side of the machine,and

by a reverse movement of lever or handle 104 he throws the othertilt-table mechanism into operation to tilt the table once and thenrestore it to normal position. Thus by watching a particular block theoperator may take as many abnormal cuts as he desires from said block,the machine restoring itself instantly to normal position for succeedingblocks. The lower end of standard 50 is practically a pendulum, hangingnearly perpendicular to the post D of the frame. To this lower portion,on the face next said postD,there is attached a hinged plate, 120, whichmay be set out more or less from the face of the post by a set-screw,121, passing through said standard. As this plate. is set out from thestandard 50, (being hinged at one side of said standard) it will assumea greater angle to the face of the standard 50 and post D. A piece, 122,generally a screw with an inclined point, projects from the side of theframe-post D toward the lower end of pendulous piece 50, opposite theplate 120, so that said plate bears against this projection.

As the side of table 21 over the arm 52 is heaviest, and as theshinglebolt is drawn off this side of the tilt-table, the pendulous arm50 will always have a tendency to retain the plate against theprojection 122. Then a shift of the position of the tilt-table willswing this pendulous arm or standard in such manner that'thc twoinclines are kept in contact. The effect of this will be to swing thependulum a little out of the perpendicular, and as the pendulum isrigidly attached to the tiltc table, the tilt-table will partake of thismovement and will have a'slight incline in one direction or the other.As each saw is a horizontal plane, any wedge-shaped piece cut from belowthe carriage, which moves in a parallel plane, must be in some degree ofthe nature of a conic section. If the tilt-table is shifted in an are atright angles to the plane of movement of thesaw and carriage, this conicsec tion will generally be of unequal thickness at the edges or oppositeends of tilt-table. The mechanism just described enables me to give tothe tilt-table such a movement as will overcome this tendency tounevenness by swinging the table out of true so much as may be necessaryto compensate for the error.-

The saws are mounted on vertical arbors 131, which are supported inbearings at each side of the machine. The upper bearing-box, 132, issuch as is described as the ball or swivel bearing in my application,No. 204,635, of June 9, 1886. It is thought unnecessary to describe ithere further than to say it is such a hearing as permits a universalmovement of the upper end of the arbor.

The lowerboxes, 133, are of peculiar conto permit access to the saws.

struction, as will be hereinafter described, to permit of a readyadjustment of the arbor in any direction and to hold the arbor firmly,so that it shall not be permitted to rise and shall be easily andthoroughlylubricated. A strong arm, 131, attached to each box 133, has aloop connection with belt 135, which passes through a hole in bracket136 on the floor of the building. Nuts 137 and 138 on opposite sides ofthe bracket 136 permit the adjustment of the bolt in such manner as tomove the entire ma chine, it being understood that the boxes 133 arefirmly connected to frame A or to projections therefrom. The sawyerstable 140 is in convenient location at the outside of the machine,overhanging the rim of carriage 5. This table is pivoted to brackets141, so that it can be turned back out of the way. The table is inconvenient location to permit a ready grasp oflever 47 or handle 101.

The outer edges of the saws are covered by shields 144, which are ofcrescent form and are pivotally connected to arms F of the frame, sothat the guards may be turned over backward hen in position over thesaws, the guard 144, is held by a catch, 145, (see Fig. 10,) engaging anarm, 146, projecting from one of the supportingarms 147 of the shield.It is only necessary to trip the catch in order to turn the shield downaway from over the saw. YVhen the sawyer, standing in front of the table140, drops a new block or bolt into one of the receptacles 7, the boltfalls on table 150, which table consists of a front and rear section,these sections being practically continuations of ways 20. The dog 8 isheld back by cam 15 at the time the new block is inserted; but as thecarriage rotates the blocks 1.7 in grooves of receptacles 7 carry theshingle-bolt onto the tilt-table 21, and as soon as the bolt is entirelyon the tilt-table (having assumed thereon such position that thethickness of a shingle projects below the plane of the saws) the dogcloses on the bolt (by means of spring 9) and holds the bolt firmlytoward the center of the rotating carriage during the cutting of theshingle from the bolt. When the block has been sawed into shingles, sothat only the spalt or waste remains, it is desirable to drop this spaltfrom the machine. At the same time it is important that every shinglepossible should be cut from the bolt before the spalt is thrown away. Itis therefore desirable that the sawyer should be able to cause the spaltto drop at either side of the machine. The ways 20, on which the blockrests when nndogged, have movable sections 150 151. The section 150 issupported on posts 152 152, which are hinged to the frame at 153 153some little distance below the piece 150. The section 151 is supportedon posts 154 155, pivoted to the frame at 156 156. A cross-rod, 157,connects the post below its pivot with post 152 above its pivot. (SeeFigs. 2, 5.) A spring, 158, draws on the upper end of post 152, andhence pulls the section 150 toward the center of the machine, saidsection 150 having end bearings against the fixed sections 20 of theways.

Alongside the carriage-wheel 5, at each side of the machine, there is acurved bar, 160, having an inclined outer end, 161. The inner end, 162,of the curvedbar is hinged to the frame-work, as at 164, Fig. 4, and ahorizontal piece, 165, is also hinged to the frame at 167 below thepivot 164., and connected by an upright, 166, to bar 160, so that thepieces 160 and form practically a small swinging gate or rack hinged tothe frame and capable of swinging outward. A rod, 159, connects theouter end of this gate with the upper part of post 152.

A pivoted trip, 170, on the carriage 5 cpposite the leading end of eachreceptacle 7 lies loosely on the rim of the carriage-wheel unless turnedinto operative position by the hand of the operator. When so turned out,as shown in Fig. 2, the edge of this trip lies in notch 171, and thetrip forms a projection radial to the carriage-wheel. In this position,as the carriage rotates, the trip engages the bar 160 and swings saidbar and the gate of which it forms a part outward. This draws out theupper end of post 152, and consequently spreads the track-section 150outward, and as post 152 is connected to post 155 below its pivot, post155 is rocked to carry the tracksection 151 inward. The tracksections150 151 are thus spread apart far enough for the spalt to fall betweenthem. The movement of the track-sections is toward and from the centerof the machine in opening and closing, the

track-sections remaining always parallel with each other and with therim of the revolving carriage. As soon as trip 170 has passed beyond bar160, its lower surface encounters an incline, l7 2, which lifts the tripout of notch 171, and when so lifted a stop, 173, serves to turn backthe trip 170, so that it lies loosely on top of the carriage-frame. (SeeFigs. 1, 3.) As the carriage approaches the Sawyer at table 140 from hisleft, if the sawyer sees a spalt should be dropped at once, he turns thetrip 170 in front of that spalt into its notch 171 with his left hand,and the spreading of the ways takes place immediately, the spalt beingdropped nearly at the side of table 140; but if the sawyer desires toout one more shingle from the spalt and there be not timber enough toout two, he must drop the spalt at the opposite side of the machine.This he does by turning the trip 17 0 into its notch as soon as the tripshall have passed to the righthand side of his table, and the trip ridesin its notch until it comes to the opposite bar, 160, when the spalt isdropped, a shingle having been sawed therefrom meanwhile.

It is desirable to saw as many shingles as possible from the spalt, andat the same time it is not advisable to saw the spalt down so thin thatit may be carried between the saw and carriage and cause damage to themachine. The dogs, as has been explained, close toward the center of themachine. The tilt movement is also caused by a swing of the rock-shaftarm in a direction toward the center of the machine, and thespalt-dropper also moves radially. These movements tend to give greatersteadiness than if the prime movements of the motors were vertical. Thesaws out toward the center of the machine. One sawdust-spout, 180, hasan open side in which one of the saws 130 runs, and the spout 181 isclose to and nearly tangential to this saw, the spout 181 being acontinuation of spout 180, but extending straight toward the side of themachine in a direction practically radial. The spout 182 presents itsopen end toward the periphery of the other saw 130 just inside the innerend of the shingle-bolt when in position for sawing. This spout 182makes a curve just before its juncture with spout 180, and then joinswith said spout 180 to form the discharge-spout 181. The sawdust thrownby the saw into the open end of spout 182 is deflected at the curvedportion, and is thus glanced along the interior of spout 181 and thrownfrom the side of the machine.

An adjustable piece, 223, can be moved to maintain the same relativedistance between the edge of the saw and the spout as the saw wearsaway.

The upper part or web, G,of the frame consists of branching armssuitably connected by braces and all connected to a central hub formingthe upper bearing for the central shaft, 1, of the machine.

Supported on the web 0 of the frame at opposite sides of the machine arerotary planers 190just in the rear of the saw in position to plane thelower surface of the shingle-bolt as it comes from the saw, and beforethe bolt is undogged and dropped on ways 20.

It will be understood that in the construction ofmachines embodying myimprovements I do not confine myself to the precise form of mechanismshown; but Ipropose to avail myself of equivalents in all instances.

In the saw-arbor boxes I use a device described in my formerapplication, as has been stated, for the upper or ball bearing. Thelower bearing-box is of peculiar construction, as shown moreparticularly in Figs. 13 and 14. The lower end of shaft 131 runs in abox or casing, 133, which can be partially filled with oil. The lowerportion of the arbor has rings 225 225integral with it. Said rings fitinto corresponding grooves in the box-cap 201. collar, 200, encirclesthe shaft 131 and rests on top of the box and cap 201. The bifurcatedarm 203 has pivotal bearing in bridgepot 133 at 205 at one end. Across-bar, 208, connects its opposite ends and forms a bearing forbridge-screw 207. As the rings 225 are solid with arbor and boxes 201fit thereon and are held from vertical motion by ring 200 and yoke 205and screw 207 therefor, said device performs all the functions of acollar, and

v as it is all within the box the lubrication and expansionof metal areboth provided for. The piece 201 is squared and held on each of its foursides by a set screw, 202, passing through sides of box 133. The piece201 can thus be adjusted in any direction by means of the set-screws,thus shifting the base of the arbor to level the saw.

The fork 203 can be pressed down by its pressure bar and nut, so that itwill hold boxes 201, and thereby the saw-arbor, firmly against anytendency to rise.

The table 140 has two openings, 220, which serve as gages to denote theposition at which the operator must shift the handle 101 to trip thetilt-table. Projections 221 on the opposite side of the carriage serve asimilar purpose. The lower part of rim of wheel 5 is supported atopposite sides of the frame by a number of bearing-pieces, 230. Thesepieces are preferably blocks of wood out to present the end of the graintoward the wheel which rests on them. The blocks 230 areinserted introughs 231, and each trough 231 has a lubricatingcup,232, attachedthereto and connected therewith. The cups may be filled with oil,whichwill pass into the troughs around the bottom of the blocks 230 and willbe carried up the pores of the blocks by capillary attraction, so thatthe surface of these blocks will be constantly lubricated.

In the foregoing specifications I have described the best modes nowknown to me for applying the principle of my invention; but changes,substitutions, and omissions may be made as to the described parts,provided only the essential elements'of invention set forth in thefollowing claims are employed.

I do not herein broadly claim a movable section on the track or blocksupport,nor broadly claim supports for the edge of the rotary carrier,the same being claimed in my application, No. 242,815, filed June 28,1887.

I claim 1. A shingle-sawing machine having saws mounted on verticalarbors and a rotary boltcarriage supported on a central vertical shaft,in combination with a lever extending from the outside of the frame tothe central shaft, fulcrumed near and having a bearing on said shaft,whereby the shaft and carriage may be lifted to permit access of thesaws, substantially as described.

2. The combination, with the rotary carriage and central vertical shaftof a shinglesawing machine, of a lever formed of sections,

the inner section fulcrumed near and engagtral verticalsupporting-shaft, alever stepped under said shaft and extending out-sidethe frame of the machine, and a swing piece attached to the frame andadapted to engage said lever and hold it up or down, substantially asdescribed.

4. The combination, with the rotating carriage of a shingle-sawingmachine, of a dog near the periphery of said carriage, a bent armpivotally connected at its outer end to said carriage and at its innerend bearing an anti-friction roll, a spring surrounding said arm, havingan abutment on the carriage, and an adjustable abutment on the arm,whereby the pressure of the spring may be regulated, and a cam orincline on the frame against which the anti-friction roll has a bearingin the rotation of the carriage, substantially as described.

5. The combination, with the rotary carriage of a shingle-sawingmachine, of a dog near the periphery thereof and guided in radial waysin said carriage, an arm connected to said dog and extending inwardlypast the stationary dog toward the center of the carriage, a springpressing said arm and dog inwardly, a cam-surface on the frame inposition to press out the said arm during a portion of the revolution ofthe carriage, and a sup port for the inner end of said arm,substantially as described.

6. The combination, with the rotating carriage having a rack, of a shaftbearing a pinion engaging said rack, a pulley on said shaft, acountershaft toward the opposite side of the machine,having suitablepulleys and belt-connection to the pinion-shaft, a saw-shaft, and abelt-connectiou from said saw-shaft straddling the central arborconnecting to one of the pulleys on said counter-shaft, as set forth.

7. In a shingle sawing machine, in combination,-a horizontal saw, atilt-table supported on a universal bearing, a pendent lever con nectedto said table, means for tilting the table longitudinally, and a shifterfor operating the table laterally during the longitudinal movement,whereby the table is tilted longitudinally and laterally at the sametime, substantially as described.

8. The COIllblllEtllOILWlih the horizontal saws and rotary carriage of ashingle-sawing machine or" the character described, of atilt-table ateach side of the machine, a train of mechanism by which eithertilt-table may be tipped by power com municated from the rotarycarriage, a handle near the operators position, and connections,substantially as described, leading from the handle to each tilt-table,whereby the tilt-tables may be separately thrown into operation, as setforth.

9. The combination, with the rotating saws and carriage, of a tilt-tableat each side of the machine, a train of mechanism, substantially asdescribed, whereby each tilt-table may be separately actuated from therotary carriage, a handle pivoted to the frame near the operatorsposition, a rod connecting said handle to the tiltcontrolling catch atone side of the table, and a lever and controlling-catch connected tosaid rod, whereby the other tilt is actuated by moving the handle inreverse direction. as set forth.

10. The combination, in a shinglesawing machine, of a tilt-table, anoscillating beam for rocking the same, a rotating cam engaging saidbeam, a power-driven rocker, and a clutch by which said rocker and cammay be thrown into connection.

11. The tilt-table and its walking-beam, the loosely mounted cam, therock -shaft and rocker-wheel fixed thereto, a clutch between the rockerand cam, and a holding-stop by which the rocker is held, so that theclutch cannot come into engagement.

12. The oscillating beam of the tilt-table engaging the race-cam, arockerwheel in proximity to the raceeam, having two stops thereon, andadetent in position to swing in front of one or the other of the stopsof the rocker, the specified elements in combination, substantially asset forth.

13. The combination, with the tilt-table and its rocking beam, oftherace-cam engagingsaid beam, the rock-shaft on which said cam isloosely mounted, having'a rocker-wheel thereon provided with aseries ofstops, aclutch be tween the rocker-wheel and cam, and a plurality ofdetents in position to engage the stops on the rocker-wheel, and ahandle on the frame near the operators position by which said detentsare operated, substantially as described.

14. The rotating carriage having block-receptacles and projections equalin number to the blockreceptacles, the rock-shaft having an arm inposition for engagement with each of these projections, a spring tendingto rock said arm into position for engagement with said projections, anda detent which holds the spring under tension and the arm out of engagement, all combined, substantially as set forth.

15. The combination, with the rotating carriage, rock-shaft, andmechanism for throwing the shaft into engagement, as described, ot' therace-cam on said rock'shal't, a clutch whereby the shaft may be engagedto move the racecam, and a stop fixed to the frame and engag ing saidracecam to hold it (and the tilt-table) in fixed position at the extremeof movementof the table, substantially as described.

16. The combination, with the tilt-table and its oscillating beam, ofthe rock-shalt and racecam thereon engaging said beam, the rockerwheel,a catch on said wheel in position to engage the race-calmnnd a pawl onthe frame in position to engage the race-cam and to be lifted by theincline on the rocker-wheel, substantially as described.

17. The combination, with the tilt-table and its walkingbeam, therace-cam engaging said beam, and the clutch pawl and connectingmechanism, substantially as described, by which the race-cam is actuatedfrom the rockshaft, of a detent for operating the cl utchpawl the firsttime and having engagement with the race-cam for causing a secondengagement of the clutch-pawl, substantially as set forth.

18. In a shingle-sawing machine, and in combination, a horizontal saw, arotating carriage having block-receptacles, atilt-table mounted onuniversal bearing beneath said carrier, mechanism for tilting said tablein lateral direction, and a bearing on the frame against which a portionof the table is carried to produce a limited swing of the table inlongitudinal direction.

19. The combination, with a rotating carriage and horizontal saw, of atilt-table having automatic adjustment in all lateral directions,substantially as described.

20. The combination, with a rotary carriage and horizontal saws, of atilt-table and mechanism for tilting the same, a rigid pendulousattachment to the tilttable, and a bearing-surface on the frame, wherebythe pendulum may be swung out of true, as set forth.

21. The combination, with a rotary carriage and horizontal saws, of atilt-table having a rigid pendulous attachment, an adjustable piece onsaid attachment, and an adjustable bearing on the frame, against whichsaid pendulum is supported.

22. The tilt-table supported on Wedges having grooves on their lowersurfaces, the inverted cups having splines entering said grooves, andthe screw-collars and movable risers entering said cups, all thespecified elements combined, substantially as stated.

23. The tilt-table guided by a universal bearing, a pendulumlever fixedto the table and passing through said bearing, and an adjustable inclineon said pendulum engaging a pro-.

jection on the frame, all the specified elements in combination withmechanism for tilting the table, substantially as described.

24. The combination, with the frame and the rotating carriage and themovable piece for operating the tilt, of the operators table inproximity to said carriage, a hinge connecting said operators table tothe frame, and an indicator on the table to show the position at whichthe tilt must be shifted.

25. In a shingle-sawing machine,-the combination'of a horizontal saw, arotating carrier, a tilt-table mounted on universal bearing beneath thecarrier, mechanism for rocking the tilt-table in lateral direction, andan adj ustable bearing on the frame, against which part of the table iscarried to produce limited longitudinal oscillation, as set forth.

26. In a shingle-sawing machine, the combination of the saw, therotating carriagehaving bolt-receptacles which move over thesaw, abolt-supporting way consisting of two concentric circular tracks and twomovable sections side by side and forming part of said tracks, adaptedto he displaced from normal positions under the bolt.

27. The saw and carriage, substantially as described, the circularguideway, movable sections in and forming part of said guideway,supported on hinged posts, and lever mechanism connected to the posts,whereby the sections may be swung radially in opposite directions, allin combination, substantially as stated.

28. The combination,with the saw and carriage, arranged substantially asshown, of the circular supporting-way beneath the carriage, two movablesections forming part of said way, supported on hinged posts beneath thecarriage, and a rod connecting onehinged post from one side of its pivotto the other post at the other side of its pivot, whereby the movablesections may be expanded radially to the table, but in oppositedirections, substantially as described.

29. The combination, with the rotating carriage and its saw, arrangedsubstantially as shown, of the circular way beneath the carriage,havinga movable section,a movable bar outsidethe rotating carriage andconnected to the movable section of the way, and a trip on the carriageadapted to be thrown into position to displace the movabletrack-section, as set forth. I

30. The rotating carriage and saw, arranged substantially as described,the way beneath the carriage having a movable section, the movable baroutside the carriage connected to the movable section, the trip on thecarriage, adapted to be thrown into position to engage the movable bar,and a stop on the frame in position to throw the trip out of operativeposition, substantially as described.

31. The combination,witha rotary carriage and a horizontal saw, of ablock-supporting way consisting of two tracks, a section of each trackin advance of the saw made movable, and a catch on the carriage inposition to operate both tracks simultaneously, as set forth.

32. The combination,with the rotating carriage and a plurality of saws,arranged substantially as described, of away-beneath the carriage,having a plurality of movable sections,and a trip on thecarriage,adapted to be moved into position to actuate either movablesection of the way, as set forth.

33. The combination, in ashingle-sawing machine, of a plurality of sawson opposite sides of the machine, a rotating table pivoted between saidsaws and having bolt-receptacles which move over the saws, a dog foreach boltreceptacle and inclines operating radially of the machine tooperate said dogs, tilt-tables for. each saw and inclines operatingradially to change the same, and a way beneath the carriage,havingmovable sections arranged to be operated radially, and a pusher on thecarriage,all substantially as shown and described.

34. The two saws arranged on vertical arbors at opposite sides of themachine, substan tially as described, combined with the sawdustspout forone saw,open at its side and covering an arc of the saw, and thesawdust-spout for the other saw, presenting its open end toward saidsaw, the two spouts uniting and ex: tending to the side of themachine,'substantially as described.

35. The combination, with a shinglesawing machine, of a saw-arborsecured in vertical position at one side thereof, a bracket on the flooror support of the machine, a screw-bolt connected to the bearing-box ofthe saw-arbor and passing through said bracket, and set-nuts on saidbolt in proximity to the bracket, substantially as described.

36. The combination, with a rotary saw, of a sawdust-spout having amovable section in proximity to the saw, substantially as described.

37. In a shingle-sawing machine, the rotating carriage, the tilt-table,adjunctive shifting mechanism, substantially as described, by which thetilt-table may be shifted by the movement of the carriage, a lever tothrow said shifting mechanism into action, and a trip connected to theshifter and operating to disengage the same, so that the tilt isautomatically restored to its first position, as set forth.

38. The combinatiomwith the vertical sawarbor having fixed collars, of abox fitting said collars and adjustable in a bridge-pot, and mechanismfor holding said box and the arbor from rising.

39. The vertical saw arbor and its fixed rings, the box fitting saidrings, inclosed in a bridge-pot, a fork crossing said box above therings, and mechanism for pressing down the V fork, substantially asdescribed.

40. The combination,with the vertical sawarbor having fixed rings, of abox fitting said rings, a bridge-pot in which said box is adjustablyinclosed, a fork crossing the dashpot and bearing down the arbor-box,and a screw by which said fork may be depressed.

41. The combination, with the rotating carriage, of a fixed gagesupported on the frame, by which the time for changing the position ofthe tilt-table is indicated.

42. The combination, with the rotating carriage, a plurality oftilt-tables, and a plurality of saws, of a series of gages supported onthe frame for indicating the time to operate each tilt-table,substantially as described.

43. The combinatiomwith the saw-carriage, of a Wooden block furnishing abearing for the same and an oil-retaining trough in which said block isseated.

44. The combination, with the rotary sawcarriage, of lubricating-blockssupporting the rim of said carriage, a retaining-trough for each block,and an oil cup communicating with the lower portion of the block,substantially as stated.

45. In combination, in ashingle-sawing machine, a series ofblock-receptacles grouped round a central axis, a movable dog at theouter side of each block-receptacle, a fixed dog at the inside of eachblock-receptacle, and an arm connected to the movable dog and ex tendinginward past the fixed dog.

46. The combinatiomwith a rotary carriage and horizontal saws, of atilt-table having a simultaneous transverse and longitudinal movement,substantially as described.

47. In ashingle-sawing machine,atilt-table, a carriage,and intermediateadj unctive mechanism by which the tilt-table is shifted by the carriagemovement, a catch holding the table in its tilted position, and anabutting surface in position to disengage said catch,so that thetilt-table will be automatically restored to position, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

YVILLIS J. PERKINS.

Witnesses:

ARTHUR O. DENISON, EMILY A. PELTON.

